Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 4:31 pm (0.5 ft)
Next high tide : in 5h 10m at 10:42 am (2.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:452.66:002.611:450.37:074:21First Quarter1Sat
2Sun6:392.66:572.512:140.212:430.47:074:21First Quarter2Sun
3Mon7:312.67:552.41:070.31:410.47:074:22First Quarter3Mon
4Tue8:232.68:522.41:580.42:380.47:074:23Waxing Gibbous4Tue
5Wed9:142.69:472.42:490.53:330.37:074:24Waxing Gibbous5Wed
6Thu10:022.710:382.43:390.54:240.37:074:25Waxing Gibbous6Thu
7Fri10:472.811:232.44:270.45:100.27:074:26Waxing Gibbous7Fri
8Sat11:292.85:110.45:510.17:074:27Full Moon8Sat
9Sun12:062.512:092.95:530.36:320.07:074:28Full Moon9Sun
10Mon12:462.512:482.96:340.37:110.07:064:29Full Moon10Mon
11Tue1:262.51:283.07:150.27:51-0.17:064:30Full Moon11Tue
12Wed2:062.62:083.07:560.28:31-0.17:064:31Waning Gibbous12Wed
13Thu2:462.62:503.08:390.29:12-0.17:054:32Waning Gibbous13Thu
14Fri3:262.73:343.09:240.19:55-0.17:054:34Waning Gibbous14Fri
15Sat4:092.74:212.910:110.110:41-0.17:054:35Waning Gibbous15Sat
16Sun4:562.85:132.811:040.111:310.07:044:36Third Quarter16Sun
17Mon5:462.86:092.712:000.17:044:37Third Quarter17Mon
18Tue6:412.97:092.712:250.01:000.17:034:38Third Quarter18Tue
19Wed7:382.98:132.61:210.12:020.07:024:39Waning Crescent19Wed
20Thu8:373.09:182.62:190.13:05-0.17:024:41Waning Crescent20Thu
21Fri9:383.110:232.63:200.14:07-0.27:014:42Waning Crescent21Fri
22Sat10:383.211:222.74:200.15:06-0.37:014:43Waning Crescent22Sat
23Sun11:343.25:170.06:01-0.37:004:44New Moon23Sun
24Mon12:172.812:283.26:110.06:52-0.46:594:45New Moon24Mon
25Tue1:102.81:193.27:02-0.17:42-0.46:584:47New Moon25Tue
26Wed2:002.82:093.27:52-0.18:29-0.36:574:48Waxing Crescent26Wed
27Thu2:472.82:573.18:410.09:14-0.26:574:49Waxing Crescent27Thu
28Fri3:322.83:442.99:290.19:58-0.16:564:50Waxing Crescent28Fri
29Sat4:172.74:322.810:180.210:440.16:554:52Waxing Crescent29Sat
30Sun5:022.75:212.611:080.311:310.26:544:53First Quarter30Sun
31Mon5:502.66:142.412:010.36:534:54First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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What time does the tide turn (slack tide) in South Yarmouth, MA today?

Slack tide in South Yarmouth, MA is approximately 1:36 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South Yarmouth, MA?

South Yarmouth, MA is currently in a spring phase. Tonight's moon is 84% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are South Yarmouth, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Yarmouth, MA?

Tide predictions for South Yarmouth, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Yarmouth, MA?

Tide data for South Yarmouth, MA is sourced from NOAA Station #8447504. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447504.

What is the moon phase in South Yarmouth, MA tonight?

Tonight the moon over South Yarmouth, MA is Waxing Gibbous (84% illuminated). This places South Yarmouth, MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA